Title:
Signatures of glass formation in a fluidized bed of hard spheres
Signatures of glass formation in a fluidized bed of hard spheres
Author(s)
Goldman, Daniel I.
Swinney, Harry L.
Swinney, Harry L.
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Abstract
We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits heterogeneity with increasing time and length scales. The formation of a glass results in the arrest of macroscopic particle motion and thus the loss of fluidization. Microscopic motion persists in this state, but the bed can be jammed by application of a small increase in flow rate. Thus a fluidized bed can serve as a test system for studies of glass formation and jamming.
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2006-04-14
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Article